Comparative Study between IOL Master and Contact Ultrasonic A-mode Scan in Measuring Anterior Chamber Depth and Axial Length in Cataract Patients and Normal Subjects_West China Medical Journal

Authors：

WANG XiaoYue , BAI Junxing ,  LIU Longqian , HUANG YongZhi , DengJie

Ophthalmology, West China Hospital, Sichuan University, Chendu, Sichuan 610041, P. R. China;

Corresponding author：

LIU Longqian, Email: 43620116@qq.com

Keywords：

IOL Master; 接触式A型超声; 前房深度; 眼轴长度; 比较研究

DOI：

CNKI: 51-1356/R.20120214.1632.048

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目的　通过比较白内障患者与正常人用两种方法测量的前房深度和眼轴长度值，观察IOL Master和接触式A型超声测量是否存在差别及其关联程度。方法　选取2010年12月－2011年2月期间行白内障摘除加人工晶状体植入术的年龄相关性白内障患者及除屈光不正外没有其他眼部病变的志愿者共89例。分别用IOL Maste和A型超声测量54例（96只眼）白内障患者和35例（70只眼）正常者的前房深度（ACD）和眼轴长度（AL），应用配对t检验对每组两种方法测得的ACD及AL值进行比较，并应用Pearson相关分析比较两种方法的相关性。应用独立样本t检验比较白内障组和正常者组间两种方法测得的差值是否不同。结果　白内障组A型超声和IOL Master测得的ACD值分别是（2.83 ± 0.34）、（3.05 ± 0.39） mm，AL值分别是（23.93 ± 2.46）、（24.27 ± 2.57） mm，差异均有统计学意义（P＜0.05）；正常者组A型超声和IOL Master测得的ACD值分别是（3.16 ± 0.36）、（3.43 ± 0.46） mm，AL值分别是（24.16 ± 1.61）、（24.49 ± 1.62） mm，差异均有统计学意义（P＜0.05）。两种测量方法的相关系数分别是rACD=0.823（P＜0.05）和rAL= 0.995（P＜0.05）。白内障组和正常者组两种方法测得的ACD差值分别是（0.23 ± 0.23）、（0.28 ± 0.30） mm；AL差值分别是（0.34 ± 0.27）、（0.33 ± 0.15） mm；两组间ACD和AL差值的比较，差异均无统计学意义（P=0.243，0.742）。结论　不论是白内障组还是正常者组，用IOL Master测得的ACD及AL值均比A型超声测得的相应值高，但是两种方法测得的值高度相关。白内障组和正常者组用两种方法测得的差值相比无差别；在可测到ACD及AL值的情况下，两种测量方法的差值均不受晶状体密度的影响。

Citation： WANG XiaoYue,BAI Junxing,LIU Longqian,HUANG YongZhi,DengJie. Comparative Study between IOL Master and Contact Ultrasonic A-mode Scan in Measuring Anterior Chamber Depth and Axial Length in Cataract Patients and Normal Subjects. West China Medical Journal, 2012, 27(2): 238-241. doi: CNKI: 51-1356/R.20120214.1632.048 Copy

1.	Bai QN, Wang JL,Wang QQ, et al. The measurement of anterior chamber depth and axial length with the IOL Master compared with contact ultrasonic axial scan[J]. Intern J Ophth, 2007, 7(4): 921-924.
2.	Eleftheriadis H. IOL Master biometry: refractive results of 100 consecutive cases[J]. Br J Ophthalmol, 2003, 87(8): 960-963.
3.	张亚丽, 赵云娥, 王勤美. 用A超、B超及IOL Master测量高度近视白内障眼轴的精确性比较[J]. 中国实用眼科杂杂志, 2005, 23(9): 972-974.
4.	黄锦海, 陈世豪, 温岱宗, 等. Biograph/Lenstar与IOL Master测量眼轴、角膜曲率及前房深度的比较[J]. 中华眼视光学与视觉科学杂志, 2011, 2: 126-130.
5.	Hoffer KJ, Shammas HJ, Savini G. Comparison of 2 laser instruments for measuring axial length[J]. J Cataract Refract Surg, 2010, 36(6): 1066.
6.	Landers J, Goggin M. Comparison of refractive outcomes using immersion ultrasound biometry and IOL Master biometry[J]. Clin Experiment Ophthalmol. 2009, 37(6): 566-569.
7.	Connors 3RD, Boseman P 3RD, Olson RJ. Accuracy and reproducibility of biometry using partial coherence interferometry[J]. J Cataract Refract Surg, 2002, 28(2): 235-238.
8.	Hill WE. The IOLMaster[J]. Tech Ophthalmol, 2003, 1(1): 62-67.
9.	Elbaz U , Barkana Y, Gerber Y. Comparison of different techniques of anterior chamber depth and keratometric measurements[J]. Am J Ophthalmol, 2007, 143(1): 48-53 .
10.	李宝华, 刘平, 王新. IOL Master与A超在临床中的对比研究[J]. 国际眼科杂志, 2011, 11(9）: 1636-1637.
11.	Nemeth G, Vajas A, Tsorbatzoulou A, et al. Assessment and reproducibility of anterior chamber depth measurement with anterior segment optical coherence tomography compared with immersion ultrasonography[J]. J Cataract Refract Surg, 2007, 33(3): 443-447.
12.	Baikoff G, Jitsuo Jodai H, Bourgeon G. Measurement of the internal diameter and depth of the anterior chamber: IOLmaster versus anterior chamber optical coherence tomographer[J]. J Cataract Refract Surg, 2005, 31(9): 1722-1728.
13.	Fotedar R,Wang JJ, Burlutsky G, et al. Distribution of axial length and ocular biometry measured using partial coherence laser interferometry (IOLMaster) in an older white population[J]. Ophthalmology, 2010, 117(3): 417-423.
14.	Nemeth G, Hassan Z, Modis JR, et al. Comparison of anterior chamber depth measurements conducted with Pentacam HR and IOL Master[J]. Ophthalmic Surg Lasers Imaging, 2011, 42(3): 144-147.
15.	Chen Y, Bao YZ, Pei XT. Morphologic changes in the anterior chamber in patients with cortical or nuclear age-relatedcataract[J]. J Cataract Refract Surg, 2011, 37(1): 77-82.

1. Bai QN, Wang JL,Wang QQ, et al. The measurement of anterior chamber depth and axial length with the IOL Master compared with contact ultrasonic axial scan[J]. Intern J Ophth, 2007, 7(4): 921-924.
2. Eleftheriadis H. IOL Master biometry: refractive results of 100 consecutive cases[J]. Br J Ophthalmol, 2003, 87(8): 960-963.
3. 张亚丽, 赵云娥, 王勤美. 用A超、B超及IOL Master测量高度近视白内障眼轴的精确性比较[J]. 中国实用眼科杂杂志, 2005, 23(9): 972-974.
4. 黄锦海, 陈世豪, 温岱宗, 等. Biograph/Lenstar与IOL Master测量眼轴、角膜曲率及前房深度的比较[J]. 中华眼视光学与视觉科学杂志, 2011, 2: 126-130.
5. Hoffer KJ, Shammas HJ, Savini G. Comparison of 2 laser instruments for measuring axial length[J]. J Cataract Refract Surg, 2010, 36(6): 1066.
6. Landers J, Goggin M. Comparison of refractive outcomes using immersion ultrasound biometry and IOL Master biometry[J]. Clin Experiment Ophthalmol. 2009, 37(6): 566-569.
7. Connors 3RD, Boseman P 3RD, Olson RJ. Accuracy and reproducibility of biometry using partial coherence interferometry[J]. J Cataract Refract Surg, 2002, 28(2): 235-238.
8. Hill WE. The IOLMaster[J]. Tech Ophthalmol, 2003, 1(1): 62-67.
9. Elbaz U , Barkana Y, Gerber Y. Comparison of different techniques of anterior chamber depth and keratometric measurements[J]. Am J Ophthalmol, 2007, 143(1): 48-53 .
10. 李宝华, 刘平, 王新. IOL Master与A超在临床中的对比研究[J]. 国际眼科杂志, 2011, 11(9）: 1636-1637.
11. Nemeth G, Vajas A, Tsorbatzoulou A, et al. Assessment and reproducibility of anterior chamber depth measurement with anterior segment optical coherence tomography compared with immersion ultrasonography[J]. J Cataract Refract Surg, 2007, 33(3): 443-447.
12. Baikoff G, Jitsuo Jodai H, Bourgeon G. Measurement of the internal diameter and depth of the anterior chamber: IOLmaster versus anterior chamber optical coherence tomographer[J]. J Cataract Refract Surg, 2005, 31(9): 1722-1728.
13. Fotedar R,Wang JJ, Burlutsky G, et al. Distribution of axial length and ocular biometry measured using partial coherence laser interferometry (IOLMaster) in an older white population[J]. Ophthalmology, 2010, 117(3): 417-423.
14. Nemeth G, Hassan Z, Modis JR, et al. Comparison of anterior chamber depth measurements conducted with Pentacam HR and IOL Master[J]. Ophthalmic Surg Lasers Imaging, 2011, 42(3): 144-147.
15. Chen Y, Bao YZ, Pei XT. Morphologic changes in the anterior chamber in patients with cortical or nuclear age-relatedcataract[J]. J Cataract Refract Surg, 2011, 37(1): 77-82.

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Comparative Study between IOL Master and Contact Ultrasonic A-mode Scan in Measuring Anterior Chamber Depth and Axial Length in Cataract Patients and Normal Subjects

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